This marine HVAC unit is a 16 ton Marine Air unit manufactured in1985 and installed to heat/cool the main salon on a 1986 Sea Ray Sedan Bridge. A smaller unit serviced the forward master stateroom and also the bunk bedroom. The unit worked perfectly until replaced in the summer of 2016. The only problem that ever existed was the plug that connected the controls. It had several connections in one plug that had developed poor contact. The fan was designed to run continuously when the unit was powered on. The compressor would cycle on and off to maintain the temperature setting. The water pump (not included) only needs to run when the compressor runs. I have the manual and some other papers that came with the unit.
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